Head to head
Eco-Trailer Velocity iQ vs Ifor Williams HB511
The Eco-Trailer Velocity iQ is rated 300kg heavier gross and is 20kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Eco-Trailer Velocity iQ is rated 300kg heavier gross.
- Unladen weight: the Ifor Williams HB511 weighs 20kg more empty.
Specifications side by side
| Eco-Trailer Velocity iQ | Ifor Williams HB511 | |
|---|---|---|
| Gross weight | 3,000kg | 2,700kg |
| Unladen weight | 980kg | 1,000kg |
| Payload | 2,020kg | - |
| Overall dimensions | 7.15m x 2.48m x 2.40m | - |
| Bed length | 4.88m | - |
| Internal length | - | 3.52m |
| Internal width | - | 1.79m |
| Brakes | - | Braked |
Sources: Eco-Trailer Velocity iQ, Ifor Williams HB511. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Velocity iQ if...
- you want one that is rated 300kg heavier gross
- you want one that is 20kg lighter empty
An enclosed trailer that keeps a car dry and out of sight in transit, built on Eco-Trailer's own chassis. Motorsport teams and car traders hire it to move a vehicle without exposing it to weather or attention on the road.
Listed by
- OK Racing Trailer Hire - Hertfordshire
Buy or hire the HB511 if...
The wider step up from the HB506, for larger horses or owners who want more room in transit. The extra 12cm of internal width and 36cm of length cost 80kg unladen, which is worth checking against your tow vehicle before choosing it over the HB506.
Listed by
- Trek-Trailers Suffolk - Bury Saint Edmunds
- R M Trailer Centre - Middlesbrough, North Ormesby
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- Horse Trailer Sales - Robertsbridge, Staplecross
- Trek-Trailers Three Counties - Hereford
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Eco-Trailer Velocity iQ and the Ifor Williams HB511?
The Eco-Trailer Velocity iQ is rated 300kg heavier gross and is 20kg lighter empty. The Eco-Trailer Velocity iQ is a enclosed car transporter trailer; the Ifor Williams HB511 is a two-horse trailer, twin axle, wider body.
Which is lighter, the Eco-Trailer Velocity iQ or the Ifor Williams HB511?
The Eco-Trailer Velocity iQ. It is 20kg lighter empty than the Ifor Williams HB511.
Can I tow the Eco-Trailer Velocity iQ or the Ifor Williams HB511 on a car licence?
Yes, as far as the licence goes. Both are rated at or under 3,500kg gross, and a car (B) licence has covered towing up to 3,500kg since 16 December 2021. Your car still has to be rated to tow the loaded weight - check the handbook or the VIN plate.
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